Out-of-bounds Read in Opennetworking Upf
CVE-2025-65568
A denial-of-service vulnerability exists in the omec-project UPF (pfcpiface component) in version upf-epc-pfcpiface:2.1.3-dev. After PFCP association, a PFCP Session Establishment Request that includes a CreateFAR with an empty or truncated IPv4 address field is not properly validated. During parsing, parseFAR() calls ip2int(), which performs an out-of-bounds read on the IPv4 address buffer and triggers an index-out-of-range panic. An attacker who can send PFCP Session Establishment Request messages to the UPF's N4/PFCP endpoint can exploit this issue to repeatedly crash the UPF and disrupt user-plane services.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (28.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Opennetworking Upf — versions 2.1.3
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Broken Link)
- cve@mitre.org (Broken Link)
- cve@mitre.org (Exploit, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2025-65568?
- CVE-2025-65568 is a high-severity vulnerability in Opennetworking Upf, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2025-12-18.
- How severe is CVE-2025-65568?
- High severity. CVSS v3 base score is 7.5 out of 10.